An Experimental Investigation into the Wave Power Extraction of a Small–Scale Fixed Multi–Chamber OWC Device

2019 ◽  
Author(s):  
Mohammad Shalby ◽  
David G. Dorrell ◽  
Paul Walker ◽  
Ahmed Elhanafi
Keyword(s):  
Experimental Investigation ◽  
Small Scale ◽  
Wave Power ◽  
Power Extraction

scholarly journals Hardware-in-the-Loop Validation of Model Predictive Control of a Discrete Fluid Power Power Take-Off System for Wave Energy Converters

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3668
Author(s):  
Anders H. Hansen ◽  
Magnus F. Asmussen ◽  
Michael M. Bech
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Wave Energy ◽  
Fluid Power ◽  
Wave Power ◽  
Reactive Control ◽  
Power Extraction ◽  
Wave Energy Converters ◽  
Extraction Algorithm ◽  
Energy Converters

Model predictive control based wave power extraction algorithms have been developed and found promising for wave energy converters. Although mostly proven by simulation studies, model predictive control based algorithms have shown to outperform classical wave power extraction algorithms such as linear damping and reactive control. Prediction models and objective functions have, however, often been simplified a lot by for example, excluding power take-off system losses. Furthermore, discrete fluid power forces systems has never been validated experimentally in published research. In this paper a model predictive control based wave power extraction algorithm is designed for a discrete fluid power power take-off system. The loss models included in the objective function are based on physical models of the losses associated with discrete force shifts and throttling. The developed wave power extraction algorithm directly includes the quantized force output and the losses models of the discrete fluid power system. The experimental validation of the wave power extraction algorithm developed in the paper shown an increase of 14.6% in yearly harvested energy when compared to a reactive control algorithm.

Wave power extraction by a submerged piezoelectric plate

2020 ◽  
pp. 149-156
Author(s):  
Siming Zheng ◽  
Deborah Greaves ◽  
Michael H. Meylan ◽  
Gregorio Iglesias
Keyword(s):  
Piezoelectric Plate ◽  
Wave Power ◽  
Power Extraction

APPLICATION OF THE NEW COST ANALYSIS TO WAVE POWER EXTRACTION AT BREAKWATERS

1992 ◽  
pp. 2829-2833
Author(s):  
H. Kondo ◽  
I. Sugioka ◽  
T. Watabe ◽  
S. Osanai ◽  
S. Ozawa
Keyword(s):  
Cost Analysis ◽  
Wave Power ◽  
Power Extraction

Performance of a High-Solidity Wells Turbine for an OWC Wave Power Plant

1996 ◽  
Vol 118 (4) ◽  
pp. 263-268 ◽  
Author(s):  
L. M. C. Gato ◽  
V. Warfield ◽  
A. Thakker
Keyword(s):  
Experimental Investigation ◽  
Power Plant ◽  
Pressure Drop ◽  
Flow Rate ◽  
Aerodynamic Performance ◽  
Wave Power ◽  
Wells Turbine ◽  
Guide Vanes ◽  
Turbine Efficiency ◽  
Pressure Distributions

The paper describes an experimental investigation, and presents the results of the aerodynamic performance of a high-solidity Wells turbine for a wave power plant. A monoplane turbine of 0.6 m rotor diameter with guide vanes was built and tested. The tests were conducted in unidirectional steady airflow. Measurements taken include flow rate, pressure drop, torque, and rotational speed, as well as velocity and pressure distributions. Experimental results show that the presence of guide vanes can provide a remarkable increase in turbine efficiency.

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